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ASTM D4603-03

(Test Method)

Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer

Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer

SIGNIFICANCE AND USE
The inherent viscosity is relatable to the composition and molecular weight of a polyester resin. It must be controlled so that the processability and end properties of the resin remain in a desired range.
SCOPE
1.1 This test method is for the determination of the inherent viscosity of poly(ethylene terephthalate) (PET) soluble at 0.50 % concentration in a 60/40 phenol/1,1,2,2-tetrachloroethane solution by means of a glass capillary viscometer. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure.
1.2 The inherent viscosity values obtained by this test method are comparable with those obtained using differential viscometry described in Test Method D 5225.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 8.

General Information

Status
Historical
Publication Date
09-Mar-2003
ICS
83.080.20 - Thermoplastic materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.70 - Analytical Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D4603-96 - Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer
Effective Date
10-Mar-2003
Replaced By
ASTM D4603-03(2011)e1 - Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer
Effective Date
15-Nov-2011
Referred By
ASTM D6213-17 - Standard Practice for Tests to Evaluate the Chemical Resistance of Geogrids to Liquids
Effective Date
10-Mar-2003
Referred By
ASTM F3384-21 - Standard Specification for Polydioxanone Polymer Resins for Surgical Implants
Effective Date
10-Mar-2003
Referred By
ASTM F1925-22 - Standard Specification for Semi-Crystalline Poly(lactide) Polymer and Copolymer Resins for Surgical Implants
Effective Date
10-Mar-2003
Referred By
ASTM F2313-18 - Standard Specification for Poly(glycolide) and Poly(glycolide-co-lactide) Resins for Surgical Implants with Mole Fractions Greater Than or Equal to 70 % Glycolide
Effective Date
10-Mar-2003
Referred By
ASTM D6389-17 - Standard Practice for Tests to Evaluate the Chemical Resistance of Geotextiles to Liquids
Effective Date
10-Mar-2003
Referred By
ASTM F2902-16e1 - Standard Guide for Assessment of Absorbable Polymeric Implants
Effective Date
10-Mar-2003
Referred By
ASTM D2857-22 - Standard Practice for Dilute Solution Viscosity of Polymers
Effective Date
10-Mar-2003
Referred By
ASTM F2579-18 - Standard Specification for Amorphous Poly(lactide) and Poly(lactide-co-glycolide) Resins for Surgical Implants
Effective Date
10-Mar-2003
Referred By
ASTM D8105-18 - Standard Guide for Use and Application of Geosynthetic Reinforcement Reduction Factor Test Results
Effective Date
10-Mar-2003
Referred By
ASTM F2150-19 - Standard Guide for Characterization and Testing of Biomaterial Scaffolds Used in Regenerative Medicine and Tissue-Engineered Medical Products
Effective Date
10-Mar-2003

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ASTM D4603-03 - Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary ViscometerASTM D4603-03 - Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer
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ASTM D4603-03 - Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4603–03
Standard Test Method for
Determining Inherent Viscosity of Poly(Ethylene
1
Terephthalate) (PET) by Glass Capillary Viscometer
This standard is issued under the fixed designation D4603; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D446 Specifications and Operating Instructions for Glass
Capillary Kinematic Viscometers
1.1 This test method is for the determination of the inherent
D1972 Practice for Generic Marking of Plastic Products
viscosity of poly(ethylene terephthalate) (PET) soluble at
D5225 Test Method for Measuring Solution Viscosity of
0.50 % concentration in a 60/40 phenol/1,1,2,2-
Polymers with a Differential Viscometer
tetrachloroethane solution by means of a glass capillary vis-
E1 Specification for ASTM Liquid-in-Glass Thermometers
cometer.HighlycrystallineformsofPETthatarenotsolublein
E380 Practice for Use of the International System of Units
this solvent mixture will require a different procedure.
(SI)
1.2 The inherent viscosity values obtained by this test
E691 Practice for Conducting an Interlaboratory Study to
method are comparable with those obtained using differential
Determine the Precision of a Test Method
viscometry described in Test Method D5225.
2.2 ISO Standard:
1.3 The values stated in SI units are to be regarded as the
1628/5–1998 Determination of the Viscosity of Polymers in
standard. The values given in parentheses are for information
Dilute Solution Using Capillary Viscometers - Part 5:
only.
Thermoplastic Polyester (TP) homopolymers and Copo-
1.4 This standard does not purport to address all of the
3
lymers.
safety concerns, if any, associated with its use. It is the
2.3 NIST Standard:
responsibility of the user of this standard to establish appro-
4
C 602 Testing of Glass Volumetric Apparatus
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific hazards
3. Terminology
statements are given in Section 8.
3.1 Units, symbols, and abbreviations used in this test
NOTE 1—This test method and ISO 1628-5 are similar but not techni-
method are those recommended in Practice E380.
cally equivalent. This ISO standard gives an option of solvents for PET.
3.2 Definitions of Terms Specific to This Standard:
Solvent specified in this ASTM test method is one of the options in the
3.2.1 inherent viscosity (also known as the logarithmic
ISOmethod.ISOalsousesType1CUbbelohdeviscometer,ratherthanthe
viscosity number)—defined by the equation given in 11.1.
1B, and reports viscosity number, rather than inherent viscosity.
3.2.2 PET—as outlined in Practice D1972. The PET acro-
2. Referenced Documents
nym may be used to avoid trademark infringement and to
2
comply with various state or federal laws.
2.1 ASTM Standards:
D445 Test Method for Kinematic Viscosity of Transparent
4. Summary of Test Method
and Opaque Liquids (and Calculation of Dynamic Viscos-
4.1 The inherent viscosity is determined by measuring the
ity)
flow time of a solution of known polymer concentration and
the flow time of the pure solvent in a capillary viscometer at a
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
fixed temperature. The inherent viscosity value is calculated
and is the direct responsibility of Subcommittee D20.70 on Analytical Methods
from the flow time values.
(D20.70.05).
Current edition approved March 10, 2003. Published April 2003. Originally
approved in 1986. Last previous edition approved in 1996 as D4603 – 96. DOI:
10.1520/D4603-03.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036.
4
Standards volume information, refer to the standard’s Document Summary page on Available from National Institute of Standards and Technology (NIST), 100
the ASTM website. Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D4603–03
5. Significance and Use 8. Hazards
5.1 The inherent viscosity is relatable to the composition 8.1 The solvent used in this procedure is a mixture of 60
weight % phenol and 40 weight % 1,1,2,2-tetrachloroethane.
andmolecularweightofapolyesterresin.Itmustbecontrolled
sothattheprocessabilityandendpropertiesoftheresinremain Both compounds a
...

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1.1 This specification covers poly(ether ketone ketone) materials, commonly referred to as PEKK, which are suitable for molding, extrusion, composites, powder coating and additive manufacturing. Only materials in this Class 6-8 are covered by this specification. This classification system provides requirements for the use of regrind or reprocessed materials.  
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5.1 When properly used, these procedures serve to isolate such factors as material, blow-molding conditions, post-treatment, and so forth, on the stress-crack resistance of the container.  
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1.1 This classification system covers segmented block copolyether-ester elastomers suitable for molding and extrusion.  
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5.1 The quantity of volatile components in a vinyl chloride resin can be established by this test method. This test method does not identify the components.
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1.1 This test method covers the quantitative determination of the volatile matter (including water) present in vinyl chloride resins.  
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4.1 These test methods are suitable for research or as quality control or specification tests.  
4.2 Viscosity measures the resistance of a fluid to uniformly continuous flow without turbulence or other forces.
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1.2 The values stated in SI units are to be regarded as the standard. Other equivalent units are provided because of current common usage.  
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1.2 The values stated in SI units, as detailed in IEEE/ASTM SI-10, are to be regarded as standard.  
1.3 The following precautionary statement pertains only to the test methods portion, Section 11 of this classification system. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: Although this classification system and ISO 20568-1 and ISO 20568-2 differ in approach or detail, data obtained using either are technically equivalent.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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